PhyBot M1vsunitree B2
For power grid and petrochemical facility inspections, where thermal imaging and gas sensing payloads and all-terrain mobility justify cost., B2 is easier to deploy today — M1 is the longer bet on capability.
M1
0 wins
B2
1 wins
Category breakdown
Deploy & operate
Readiness, uptime, navigation & connectivity
- 45Deployment readiness72
- 60Maintenance confidence60
- Vision-led navigation (estimated)NavigationVision-led navigation (estimated)
- Wi-Fi / cloud fleet management (estimated)ConnectivityWi-Fi / cloud fleet management (estimated)
Cost & ROI
Price accessibility and ROI clarity
- 66Price accessibility41
- 35ROI clarity58
Capability
Payload, speed, runtime & labor replacement
- 60Labor replacement45
- 20 kg per arm, 50 kg via backpack systemPayload40 kg (walking sustained); 120 kg (standing)
- 10 km/h (6.2 mph)Speed6 m/s
- 2+ hoursBattery4–6 hours (45 Ah / 2250 Wh capacity); 5 hours without load for 20 km mileage, 4 hours with 20 kg load for 15 km mileage
Fit & future
Environment fit, footprint & long-term upside
- 70Environment fit80
- 75Future potential68
- Height 172 cm (5 feet 7 inches)FootprintStanding: 1098 × 450 × 645 mm; Lying: 880 × 460 × 330 mm
M1 · Best for
Heavy parts assembly in automotive or appliance manufacturing where human-scale bipedal access to elevated worktables is required
B2 · Best for
Power grid and petrochemical facility inspections, where thermal imaging and gas sensing payloads and all-terrain mobility justify cost.
Final judgment
If immediate deployment is the priority, choose B2. If the goal is to be ready when M1's capabilities mature, track it.